A severe shortage of staff with commercial skills and experience in the design and delivery of complex projects could cost the government at least £200bn.
The National Audit Office (NA0) warned today that the value for money of 43 major government projects worth around £200bn is at risk because of significant weaknesses in the government's commercial skills and expertise.
It also claimed that there is an even greater risk to many other complex projects where skills shortages are not being assessed systematically.
The private sector has an increasing role in delivering public services. It is, therefore, critical that government has staff with the commercial skills and experience to interact with the private sector.
However, departments continue to experience a shortage of staff with the commercial skills and experience needed to run complex projects successfully.
A 2009 review by the Office of Government Commerce (OGC) found that 44% of senior responsible owners of major projects did not have any substantial commercial experience.
The biggest skills gaps for government are in contract management, commissioning and managing advisers, risk identification and management, and business acumen.
The government has attempted to fill its skills gap with temporary staff and consultants. Thirteen departments have provided information showing that over a third of their staff spending in commercial directorates is on temporary staff.
Some departments also rely heavily on the support of specialist advisers. While both can make a valuable contribution, over-reliance can lead to higher project costs and loss of knowledge when temporary staff and advisers move on.
Pressure to reduce public spending can conflict with the need to invest in staff with the commercial skills to deliver complex projects, the NAO report highlights.
The culture of staff frequently moving positions within a department often leads to commercial experience and expertise being lost by projects and by individuals.
Fourteen of 16 departmental commercial directors believe OGC has done little to address skills gaps within their department, although ultimate responsibility for commercial skills remains with departments.
In the response to these findings, the OGC has introduced a number of initiatives aimed at improving commercial skills, such as building the procurement profession in government. But OGC and departments are not working together effectively and are having limited impact. As a result, the value for money of the £1.5m a year that OGC has been spending
on initiatives is at risk, says the NAO.
Amyas Morse, head of the NAO, said: "Commercial skills are essential to success in complex projects and a great deal of money rests on this; but there is still not a coherent system for providing skills across government or for using the existing skills as efficiently as possible."